Azotobacterとは 意味・読み方・使い方

名詞

azotobacter (countable and uncountable, plural azotobacter or azotobacters)

1. Any of various nitrogen-fixing bacteria in the genus Azotobacter.
   • 1914 September 11, William Headden, “Do Azotobacter Nitrify?”, in Science, volume XL, number 1028, page 380:

     I believe, and this belief is based upon tentative facts, that the azotobacter are at the same time nitrifiers, i. e., that they possess a double function

   • 1923 June 2, P.L. Gainey, “Influence of the hydrogen-ion concentration on the growth and fixation of nitrogen by cultures of Azotobacter”, in Journal Of Agriculture Research, volume XXIV, number 9, page 759:

     Investigations in this laboratory have shown that the presence or absence of Azotobacter in natural soils is very closely associated with, if not dependent upon, the absolute reaction of the soil solution

   • 1966 [1955], Ye. N. Mishustin, Soil Microbiology and its Current Problems, National Aeronautics and Space Administration, translation of Pochvennaya mikrobiologiya i yeye ocherednyye zadachi, page 18:

     It is therefore not surprising that azotobacters, introduced into soils of unwatered crops in semi-arid zones will die out rather rapidly.

   • 2021, Ajar Nath Yadav, Khem Singh Gill, Production Technology for Bioagents and Biofertilizers, Eternal University:

     They are usually motile, oval or spherical bacteria that form thick-walled cysts and may produce large quantities of capsular slime. Azotobacter is found in slightly acidic (A. beijerinckii) to neutral alkaline (A. chroococcum) soil.